UNIT - Creature Balance + Visual Changes

A logical rearrangement of griffins and monks.
But what about the following creatures:
1) hydras (too low a tier for such a giant creature)
2) centaurs (too low a tier for cavalry of their weight class)
3) bears (too low a tier; a berserker is not on par with a bear)

1) If I understand you correctly, you are suggesting swapping witches and hydras? The idea is interesting, but in that case, hydras would become very durable, even more so than ents (especially the upgraded version with regeneration), and the alternate upgrade would resemble the wyvern upgrade with its "poisonous" nature.

I would like to hear more opinions on this.

2) When the ToE expansion was released, playing through the Orc campaign, I also found it somewhat strange that such a large creature occupies such a low position in the hierarchy. In Heroes of Might and Magic 6, as far as I remember, they were assigned to the 6th tier, but in the reality of Heroes of Might and Magic 5, they can hardly compete with shamans or chieftains, and certainly not with wyverns. Based on this, they could be swapped with orcs on the 3rd tier.

3) Starting with version 1.0.1, bears and berserkers have swapped places.